Algorand MCP Server

A comprehensive Model Context Protocol (MCP) server that gives AI agents and LLMs full access to the Algorand blockchain. Built by GoPlausible.

Algorand is a carbon-negative, pure proof-of-stake Layer 1 blockchain with instant finality, low fees, and built-in support for smart contracts (AVM), standard assets (ASAs), and atomic transactions.

What is MCP?

Model Context Protocol is an open standard that lets AI applications connect to external tools and data sources. This server exposes Algorand blockchain operations as MCP tools that any compatible AI client can use — Claude Desktop, Claude Code, Cursor, Windsurf, and others.

Features

• Secure wallet management via OS keychain — private keys never exposed to agents or LLMs
• Wallet accounts nicknames, allowances, and daily limits for safe spending control
• Account creation, key management, and rekeying
• Transaction building, signing, and submission (payments, assets, applications, key registration)
• Atomic transaction groups
• TEAL compilation and disassembly
• Full Algod and Indexer API access
• NFDomains (NFD) name service integration
• x402 and AP2 toolins for Algorand
• Tinyman AMM integration (pools, swaps, liquidity)
• Haystack Router DEX aggregation (best-price swaps across Tinyman, Pact, Folks)
• Alpha Arcade prediction market trading (browse markets, orderbooks, limit/market orders, positions, claims)
• ARC-26 URI and QR code generation
• Algorand knowledge base with full developer documentation taxonomy
• Per-tool-call network selection (mainnet, testnet, localnet) and pagination

Requirements

• Node.js v20 or later
• npm, pnpm, or yarn

Installation

From npm

npm install -g @goplausible/algorand-mcp

From source

git clone https://github.com/GoPlausible/algorand-mcp.git
cd algorand-mcp
npm install
npm run build

MCP Configuration

The server runs over stdio. There are three ways to invoke it — pick whichever suits your setup:

No environment variables are required for standard use. Network selection, pagination, and node URLs are all handled dynamically per tool call.

---

OpenClaw

No manual configuration needed — install the [@goplausible/openclaw-algorand-plugin](https://www.npmjs.com/package/@goplausible/openclaw-algorand-plugin) npm package and the Algorand MCP server is configured automatically:

npm install -g @goplausible/openclaw-algorand-plugin

---

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

Using npx:

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

Using global install:

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "algorand-mcp"
    }
  }
}

Using absolute path:

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "node",
      "args": ["/absolute/path/to/algorand-mcp/dist/index.js"]
    }
  }
}

---

Claude Code

Create .mcp.json in your project root (project scope) or ~/.claude.json (user scope):

{
  "mcpServers": {
    "algorand-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

Or add interactively:

claude mcp add algorand-mcp -- npx @goplausible/algorand-mcp

---

Cursor

Add via Settings > MCP Servers, or edit .cursor/mcp.json in your project root:

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

---

Windsurf

Add via Settings > MCP, or edit ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

---

VS Code / GitHub Copilot

Edit .vscode/mcp.json in your workspace root, or open Settings > MCP Servers:

{
  "servers": {
    "algorand-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

---

Cline

Add via the MCP Servers panel in the Cline sidebar, or edit ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json (macOS):

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"],
      "disabled": false
    }
  }
}

---

OpenAI Codex CLI

Create .codex/mcp.json in your project root or ~/.codex/mcp.json for global scope:

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

---

Open Code

Edit ~/.config/opencode/config.json:

{
  "mcp": {
    "algorand-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": ["@goplausible/algorand-mcp"]
    }
  }
}

---

Any MCP-compatible client

The server speaks the standard MCP stdio protocol. For any client not listed above, configure it with:

• Command: npx (or algorand-mcp if globally installed, or node /path/to/dist/index.js)
• Args: ["@goplausible/algorand-mcp"] (for npx)
• Transport: stdio

Network Selection

Every tool accepts an optional network parameter: "mainnet" (default), "testnet", or "localnet". Algod and Indexer URLs are built-in for mainnet and testnet via AlgoNode.

Example tool call:

{ "name": "api_algod_get_account_info", "arguments": { "address": "ABC...", "network": "testnet" } }

If no network is provided, tools default to mainnet.

Pagination

API responses are automatically paginated. Every tool accepts an optional itemsPerPage parameter (default: 10). Pass the pageToken from a previous response to fetch the next page.

Secure Wallet

Architecture

The wallet system has two layers of storage, each with a distinct security role:

Private key material never appears in tool responses, MCP config files, environment variables, or logs. The agent only sees addresses, public keys, and signed transaction blobs.

How it works

Agent (LLM)                    MCP Server                     Storage
  ──────────                     ──────────                     ───────
       │                              │                              │
       │  wallet_add_account          │                              │
       │  { nickname: "main" }        │                              │
       │ ──────────────────────────►  │  generate keypair            │
       │                              │  store mnemonic ──────────►  │  OS Keychain (encrypted)
       │                              │  store metadata ──────────►  │  SQLite (nickname, limits)
       │  ◄─ { address, publicKey }   │                              │
       │                              │                              │
       │  wallet_sign_transaction     │                              │
       │  { transaction: {...} }      │                              │
       │ ──────────────────────────►  │  check spending limits       │
       │                              │  retrieve mnemonic ◄──────  │  OS Keychain
       │                              │  sign in memory              │
       │  ◄─ { txID, blob }          │  (key discarded)             │
       │                              │                              │

1. Account creation (wallet_add_account) — Generates a keypair, stores the mnemonic in the OS keychain, and stores metadata (nickname, spending limits) in SQLite. Returns only address and public key.

2. Active account — One account is active at a time. wallet_switch_account changes it by nickname or index. All signing and query tools operate on the active account.

3. Transaction signing (wallet_sign_transaction) — Checks per-transaction and daily spending limits, retrieves the key from the keychain, signs in memory, discards the key. Returns only the signed blob.

4. Data signing (wallet_sign_data) — Signs arbitrary hex data using raw Ed25519 via the [@noble/curves](https://github.com/paulmillr/noble-curves) library (no Algorand SDK prefix). Useful for off-chain authentication.

5. Asset opt-in (wallet_optin_asset) — Creates, signs, and submits an opt-in transaction for the active account in one step.

Spending limits

Each account has two configurable limits (in microAlgos, 0 = unlimited):

• **allowance** — Maximum amount per single transaction. Rejects any transaction exceeding this.
• **dailyAllowance** — Maximum total spend per calendar day across all transactions. Automatically resets at midnight. Tracked in SQLite.

Platform keychain support

The keychain backend is provided by [@napi-rs/keyring](https://github.com/nicolo-ribaudo/napi-keyring) (Rust-based, prebuilt binaries):

All credentials are stored under the service name algorand-mcp. You can inspect them with your OS keychain app (e.g. Keychain Access on macOS).

Optional Environment Variables

Environment variables are only needed for special setups. Pass them via the env block in your MCP config.

Example: localnet (AlgoKit)

{
  "mcpServers": {
    "algorand-mcp": {
      "command": "node",
      "args": ["/path/to/algorand-mcp/dist/index.js"],
      "env": {
        "ALGORAND_LOCALNET_URL": "http://localhost:4001",
        "ALGORAND_TOKEN": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
      }
    }
  }
}

Then use "network": "localnet" in your tool calls.

Available Tools

Wallet Tools (10 tools)

See Secure Wallet for full architecture details.

Account Management (8 tools)

Utility Tools (13 tools)

Transaction Tools (18 tools)

Algod Tools (5 tools)

Algod API Tools (13 tools)

Indexer API Tools (17 tools)

NFDomains Tools (6 tools)

Tinyman AMM Tools (9 tools)

Haystack Router Tools (3 tools)

Pera Wallet Tools (3 tools)

Pera Wallet tools are mainnet only — the Pera public API does not support testnet or localnet.

Alpha Arcade Tools (14 tools)

Trade on-chain prediction markets (YES/NO outcomes) denominated in USDC. All prices and quantities use microunits (1,000,000 = $1.00 or 1 share). Read-only tools work without a wallet; trading tools require an active wallet account.

Optional env var: ALPHA_API_KEY — needed for reward market data. ALPHA_API_BASE_URL — custom API endpoint (default: https://platform.alphaarcade.com/api).

ARC-26 URI Tools (1 tool)

Knowledge Tools (1 tool)

Resources

The server exposes MCP resources for direct data access. Wallet resources are described in the Secure Wallet section above.

Knowledge Resources

Project Structure

algorand-mcp/
├── src/                         # TypeScript source
│   ├── index.ts                 # Server entry point
│   ├── networkConfig.ts         # Hardcoded network URLs and client factories
│   ├── algorand-client.ts       # Re-exports from networkConfig
│   ├── env.ts                   # Legacy env shim (unused)
│   ├── types.ts                 # Shared types (Zod schemas)
│   ├── resources/               # MCP Resources
│   │   ├── knowledge/           # Documentation taxonomy
│   │   └── wallet/              # Wallet resources
│   ├── tools/                   # MCP Tools
│   │   ├── commonParams.ts      # Network + pagination schema fragments
│   │   ├── walletManager.ts     # Secure wallet (keychain + SQLite)
│   │   ├── accountManager.ts    # Account operations
│   │   ├── utilityManager.ts    # Utility functions
│   │   ├── algodManager.ts      # TEAL compile, simulate, submit
│   │   ├── arc26Manager.ts      # ARC-26 URI generation
│   │   ├── knowledgeManager.ts  # Knowledge document access
│   │   ├── transactionManager/  # Transaction building
│   │   │   ├── accountTransactions.ts
│   │   │   ├── assetTransactions.ts
│   │   │   ├── appTransactions/
│   │   │   └── generalTransaction.ts
│   │   └── apiManager/          # API integrations
│   │       ├── algod/           # Algod API
│   │       ├── indexer/         # Indexer API
│   │       ├── nfd/             # NFDomains
│   │       ├── tinyman/         # Tinyman AMM
│   │       ├── hayrouter/       # Haystack Router DEX aggregator
│   │       ├── pera/            # Pera Wallet verified assets
│   │       └── alpha/           # Alpha Arcade prediction markets
│   └── utils/
│       └── responseProcessor.ts # Pagination and formatting
├── tests/                       # Test suite
│   ├── helpers/                 # Shared test utilities
│   │   ├── mockFactories.ts     # Mock algod/indexer/keychain factories
│   │   ├── testConfig.ts        # Category enable/disable logic
│   │   ├── e2eSetup.ts          # E2E account provisioning + invokeTool()
│   │   └── testConstants.ts     # Well-known testnet addresses and asset IDs
│   ├── unit/                    # 11 unit test suites (mocked, fast)
│   ├── e2e/                     # 11 E2E test suites (live testnet)
│   │   ├── globalSetup.ts       # Account provisioning + fund-check
│   │   └── globalTeardown.ts    # Cleanup
│   └── jest.config.e2e.js       # E2E-specific Jest config
├── dist/                        # Compiled output
├── jest.config.js               # Unit test Jest config
├── tsconfig.json                # Production TypeScript config
├── tsconfig.test.json           # Test TypeScript config
└── package.json

Response Format

All tool responses follow the MCP content format. API responses include automatic pagination when datasets exceed itemsPerPage (default 10):

{
  "data": { ... },
  "metadata": {
    "totalItems": 100,
    "itemsPerPage": 10,
    "currentPage": 1,
    "totalPages": 10,
    "hasNextPage": true,
    "pageToken": "eyJ..."
  }
}

Pass pageToken from a previous response to fetch the next page. Set itemsPerPage on any tool call to control page size.

Development

# Install dependencies
npm install

# Type-check
npm run typecheck

# Build
npm run build

# Clean build output
npm run clean

Testing

The project has a comprehensive dual-layer test suite: fast unit tests (mocked, no network) and real E2E tests (live testnet). Both use Jest 29 with ts-jest and ESM support.

Quick start

npm test                    # Unit tests (fast, no network)
npm run test:e2e            # E2E tests (testnet, generates account + fund link)
npm run test:all            # Both

Unit tests

Unit tests cover all 11 tool categories with fully mocked network dependencies. They run in parallel and finish in ~5 seconds. No environment variables or funded accounts are needed.

npm test

Coverage: 11 suites, 75+ tests covering success paths, error handling, and edge cases for every tool category.

How mocking works

Unit tests use jest.unstable_mockModule() (ESM-compatible) to intercept imports before they load. The shared tests/helpers/mockFactories.ts provides:

• **setupNetworkMocks()** — Replaces algorand-client.ts with mock algod/indexer clients that return deterministic responses without any network calls.
• **createKeychainMock()** — Replaces @napi-rs/keyring with an in-memory Map, so wallet tests work without an OS keychain.
• Fluent Proxy mocks — Algorand's Indexer SDK uses a builder pattern (.searchForAssets().limit(5).do()). The mock factory uses ES Proxy objects that return themselves for any chained method and resolve when .do() is called.

E2E tests

E2E tests call tool handlers directly against Algorand testnet (via AlgoNode public nodes). They run serially to avoid rate-limiting.

npm run test:e2e

On first run (no mnemonic provided), the test setup:

1. Generates a new Algorand account

2. Prints the address and mnemonic

3. Prints a fund link: https://lora.algokit.io/testnet/fund

4. Runs all tests (unfunded tests still pass)

To run with a funded account:

E2E_MNEMONIC="word1 word2 ... word25" npm run test:e2e

Coverage: 11 suites, 35+ tests covering real network interactions.

Category activation

E2E tests can be selectively enabled by category or individual tool via environment variables. By default all categories are enabled.

Enable specific categories

E2E_WALLET=1 npm run test:e2e            # Only wallet tests
E2E_ALGOD=1 E2E_UTILITY=1 npm run test:e2e  # Algod + utility tests

Available category flags

Important: Setting any individual flag (e.g. E2E_WALLET=1) disables all other categories unless E2E_ALL=1 is also set.

Enable specific tools

E2E_TOOLS=ping,validate_address npm run test:e2e

The E2E_TOOLS variable accepts a comma-separated list of tool names. Only tests for those specific tools will run.

Test file structure

tests/
├── helpers/
│   ├── mockFactories.ts       # Mock algod/indexer/keychain factories
│   ├── testConfig.ts          # Category enable/disable logic
│   ├── e2eSetup.ts            # E2E account provisioning + invokeTool()
│   └── testConstants.ts       # Well-known testnet addresses and asset IDs
├── unit/                      # 11 unit test files (*.test.ts)
│   ├── accountManager.test.ts
│   ├── utilityManager.test.ts
│   ├── walletManager.test.ts
│   ├── transactionManager.test.ts
│   ├── algodManager.test.ts
│   ├── apiAlgod.test.ts
│   ├── apiIndexer.test.ts
│   ├── apiNfd.test.ts
│   ├── apiTinyman.test.ts
│   ├── arc26Manager.test.ts
│   └── knowledgeManager.test.ts
├── e2e/                       # 11 E2E test files (*.e2e.test.ts)
│   ├── globalSetup.ts         # Account provisioning + fund-check
│   ├── globalTeardown.ts      # Cleanup
│   ├── account.e2e.test.ts
│   ├── utility.e2e.test.ts
│   ├── wallet.e2e.test.ts
│   ├── transaction.e2e.test.ts
│   ├── algod.e2e.test.ts
│   ├── algodApi.e2e.test.ts
│   ├── indexerApi.e2e.test.ts
│   ├── nfd.e2e.test.ts
│   ├── tinyman.e2e.test.ts
│   ├── arc26.e2e.test.ts
│   └── knowledge.e2e.test.ts
└── jest.config.e2e.js         # E2E-specific Jest config

Jest configuration

Writing new tests

Unit test template:

import { jest } from '@jest/globals';
import { setupNetworkMocks } from '../helpers/mockFactories.js';

jest.unstable_mockModule('../../src/algorand-client.js', () => setupNetworkMocks());

const { YourManager } = await import('../../src/tools/yourManager.js');

describe('YourManager', () => {
  it('does something', async () => {
    const result = await YourManager.handleTool('tool_name', { arg: 'value' });
    const data = JSON.parse(result.content[0].text);
    expect(data.field).toBeDefined();
  });
});

E2E test template:

import { describeIf, testConfig } from '../helpers/testConfig.js';
import { invokeTool, parseToolResponse } from '../helpers/e2eSetup.js';

describeIf(testConfig.isCategoryEnabled('your-category'))('Your Tools (E2E)', () => {
  it('does something on testnet', async () => {
    const data = parseToolResponse(
      await invokeTool('tool_name', { arg: 'value', network: 'testnet' }),
    );
    expect(data.field).toBeDefined();
  });
});

Dependencies

• algosdk v3 — Algorand JavaScript SDK
• @modelcontextprotocol/sdk — MCP TypeScript SDK
• @napi-rs/keyring — Native OS keychain access (macOS Keychain, Linux libsecret, Windows Credential Manager)
• sql.js — Embedded SQLite (WASM) for wallet metadata persistence
• @noble/curves — Pure JS Ed25519 for raw data signing (wallet_sign_data)
• @tinymanorg/tinyman-js-sdk — Tinyman AMM SDK
• @alpha-arcade/sdk — Alpha Arcade prediction market SDK
• zod — Runtime type validation
• qrcode — QR code generation for ARC-26

License

MIT